DIANA, N.Y. (AP) – A 21-year-old New Hampshire man on an outing with friends died after he jumped from a cliff high above a lake and struck rocks at water’s edge, officials said Sunday.

Alexander Chappell, a Clarkson University student from Somersworth, N.H., was still conscious after he jumped from a cliff about 80 to 100 feet high around 4 p.m. on Saturday, Lewis County Undersheriff John LaDuc said.

Despite a broken arm, Chappell swam to a rescue boat and was alert and talking to paramedics as he was airlifted to a hospital, LaDuc said.

Chappell later died at Samaritan Medical Center in Watertown, LaDuc said. An autopsy was conducted on Sunday, but results were not immediately available. LaDuc said it did not appear that drugs or alcohol were involved. The accident happened at Lake Bonaparte. A lower cliff overhanging deep water on the lake is a popular spot for diving. But the cliff Chappell jumped from was much higher and farther back, and nobody had ever tried to jump from it, LaDuc said.

Chappell, a senior majoring in mechanical engineering, was with a group of six young people at the time of the accident.

A memo about the accident was sent to faculty and students at Clarkson, and grief counselors were made available, said university spokesman Rick Burt.

Virginia Short described her grandson as funny, energetic, with many friends.

“He’s done well for three years in college and now it’s all gone,” Short told Foster’s Daily Democrat on Sunday.